I have the following issues with libremath:

I want to continue an equation on the line below and start with an equals sign which I want aligned below the equals sign above. I have followed the recommended method of entering empty braces before the equals but it just shows the empty braces above in the finished formula & aligns the equation to the left?

Fonts - I only have the option of one text font?

I am able to use libreoffice version 5 with my PC but I can’t use libreoffice with mac os x 10.6.8, is there a version I can use with this or os x 10.7?

If not what is the oldest version of os x that is supported?